heyy reed
there are a Few Things you can check
1- retraction settings make sour you do not retract more than 5 mm
2- sour PTFE make the pipe is inserted wel al the way in to the heatbreak
3- check the diameter of the filament you use
4- try Lowering the flowrate (when i had this problem This Was the fix)
5- make sure your printing speed is not to fast
I hope you can fix the problem soon